Ch. Eick COSC 6335 —What is left in 2013? 1. Classification Part2 a. kNN b. Support Vector Machines c. Ensemble Approaches d. Model Evaluation 2. Spatial Data Mining (only basic introduction; nothing else) 3. Project4 4. Teaching Evaluation 5. Clustering Part2 a. Hierarchical Clustering b. DENCLUE 6. Presentation Group D at 12:30p (Judges submit your forms today; e.g. to Dr. Eick’s Surface Mailbox) 7. Post Analysis Project2 8. Page Rank Most Popular Data Mining Algorithms 10. Data Cubes / Data Ware Housing OLAP 11. Review3 (question will be posted not later than Dec. 4 on website!) 12. Final Exam (Dec. 17, 11a some place as midterm exam) Last updated: Nov

Ch. Eick Christoph F. Eick

Ch. Eick On Reviewing Reviewing has many roles in our society: To help people to make selections To determine which research is most valuable/worth publishing To determine which research gets funded and how to distribute research funds and other resources … Reviewing is also important of your everyday life: To choose the best methods and products To choose what to allocate your resources on In order to be successful in your research and professional life you need to be a good reviewer! Challenge: Reviewing requires you to form an opinion about something, and students are usually not often asked about their opinion about something 3 November 26, 2013

Ch. Eick Project4 Plan Each group selects one of the 4 posted papers to review (all 4 papers received awards: Best Paper and Best Student Paper KDD 2012, and Runner- up Best Paper ICDM 2012 and SDM 2013) Deadline: Submit your review by Monday, December 9, 11p (no extensions!) Project4 Paper Reviews will differ from traditional conference paper reviews in several aspects (purple means not part of a traditional review): The section that summarizes the paper will be about 3 times as long The educational value of the paper for graduate students need to be assessed in your review You will assess the broader impact of the paper You will also conduct web-search trying to find similar papers and summarize your findings in 2 paragraphs Usually you should also check if the paper or parts of it are already published; however, this is not required for Project4. A paragraph is assumed to have 4-10 sentences. Follow the review template outlined in this document (if you do not your group will be penalized) 4 November 26, 2013

Ch. Eick Some Hints on Reading Papers In general, reading, understanding and reviewing conference papers is challenging. If you understand 60% of the paper you have to review, you should be happy! Misconceptions and misunderstanding pose another challenge for understanding papers Discussing the paper with others (e.g. your team mate) helps! If you read a paper and do not understand a term, look it up, e.g. in Wikipedia. As you might be lost understanding the paper; I suggest that you initially scan through the paper, and then do some websearch and do some reading of background material, and then read the paper again, discuss it with your teammate and continue this loop… Lack of Math knowledge might be another challenge. Do get frustrated initially—things will likely improve as the project evolves 5

Ch. Eick Project4 Review Format 1. Summarize what the research area and the topic of the paper is and what its contributions are 2-4 paragraphs); write in a neutral or positive tone no matter how bad the paper is! 2. Assess the contributions of the paper (at 2-4 paragraphs); follow the questions and criteria of the two papers on the 6335 website and the KDD 2012 Reviewing Criteria (at the end of this slideshow). In particular, assess the novelty, technical quality, significance and impact, and clarity of writing of the paper. If the paper makes contributions that do not fit into these 4 criteria, summarize those in an optional “other contributions” paragraph) 3. What are the 3 strongest points of the paper (just one sentence for each point)? 4. What are the 1-3 weakest points of the paper (just one sentence for each point)?

Ch. Eick Project4 Review Format2 5. Assess the educational value of the paper for graduate students (1-3 paragraphs)! Is the paper a good starting point to do work/research in the area? Does the paper do a good job in introducing the goals and objectives and the methods of the field of research? Does the paper do a good job in getting graduate students excited about working in the research field? What did you learn from reading the paper? 6. Numbered List of Specific Comments and Questions (e.g. the claim stated in the second paragraph is not clear; I do not agree with the conclusion in the third paragraph…, symbol x was never defined, it is not clear to me what the purpose of Section is; the author introduced formulas 2.4 that are never used in the remainder of the paper, I do not understand what the term x means,…). Each review should have 3-7 specific questions/comments! 7. Summarize the findings of the web-search you conducted (2 paragraphs); also evaluate what you found! 8. Broader Impact (1-2 paragraphs); what real world applications will arise from this work? Assess how the paper will help society to make earth a better place! Does the paper foster new research/new approaches that could be investigated in future research? Does it establish new connections between different, originally disconnected research communities? 9. Give the paper a numerical score (1-7) using the KDD-2012 Criteria; 7 scores (add scores for educational value, broader impact and overall score!)! 10. Assess the usefulness of Project4 (1 paragraph)!

Ch. Eick KDD 2012 Reviewing Criteria: Research Track Below we have provided some guidelines to reviewers on how to write reviews, both the content of reviews and also how the numerical scoring system works. Many of the suggestions below have been liberally borrowed from other conferences - so thanks to the many folks who have contributed to writing these types of "guidance" pages in the past. Writing Reviews: Content (Edited by Ch. Eick) For each paper you will provide written comments under each of the headings below. Your review should address both the strengths and weaknesses of the paper - identify the areas where you believe the paper is particularly strong and particularly weak - this will be very valuable to the PC Chairs and the SPC. Novelty: This is arguably the single most important criterion for selecting papers for the conference. Reviewers should reward papers that propose genuinely new ideas or novel adaptations/applications of existing methods. It is not the duty of the reviewer to infer what aspects of a paper are novel - the authors should explicitly point out how their work is novel relative to prior work. Assessment of novelty is obviously a subjective process, but as a reviewer you should try to assess whether the ideas are truly new, or area novel combinations or adaptations or extensions of existing ideas, or minor extensions of existing ideas, and so on. Technical Quality: Are the results sound? Are there obvious flaws in the conceptual approach? Did the authors ignore (or appear unaware of) highly relevant prior work? Are the experiments well thought out and convincing? Are there obvious experiments that were not carried out? Will it be possible for later researchers to replicate these results? Are the data sets and/or code publicly available? Did the authors discuss sensitivity of their algorithm/method/procedure to parameter settings? Did the authors clearly assess both the strengths and weaknesses of their approach? Potential Impact and Significance: Is this really a significant advance in the state of the art? Is this a paper that people are likely to read and cite in later years? Does the paper address an important problem (e.g., one that people outside machine learning and data mining are aware of) or just a problem that only a few researchers are interested in and that wont have any lasting impact? Is this a paper that researchers and/or practitioners might find useful 5 or 10 years from now? Is this work that can be built on by other researchers? Clarity of Writing: Please make full use of the range of scores for this category so that we can identify poorly-written papers early in the process. Is the paper clearly written? Is there a good use of examples and figures? Is it well organized? Are there problems with style and grammar? Are there issues with typos, formatting, references, etc? It is the responsibility of the authors of a paper to write clearly, rather than it being the duty of the reviewers to try to extract information from a poorly written paper. Do not assume that the authors will fix problems before a final camera-ready version is published - unlike journal publications, there will not be time to carefully check that accepted papers are properly written. Think of future readers trying to extract information from the paper - it may be better to advise the authors to revise a paper and submit to a later conference, than to accept and publish a poorly-written version. Additional Points (optional): this is an optional section on the review form can be used to add additional comments for the authors that don’t naturally fit into any of the areas above. Comments that are only for the SPC and PC (optional): again this is another optional section. If there are any comments that you would like to communicate to the SPC and PC chairs, but that wish not to be seen by the authors, they can go in this section. Report plagiarism, cheating, and other unethical practices! 8

Ch. Eick KDD 2012 Numerical Paper Evaluation General Advice on Review Writing: please be as precise as you can in your comments to the authors and avoid vague statements. Your criticism should be constructive where possible - if you are giving a low score to a paper then try to be clear in explaining to the authors the types of actions they could take to improve their paper in the future. For example, if you think that this work is incremental relative to prior work, please cite the specific relevant prior work you are referring to. Or if you think the experiments are not very realistic or useful, let the author(s) know what they could do to improve them (e.g., more realistic data sets, larger data sets, sensitivity analyses, etc). Writing Reviews: Numerical Scoring For KDD-2012 we are using a 7-point scoring system. We strongly encourage you to use the full range of scores, if appropriate for your papers. Try not to put all of your papers in a narrow range of scores in the middle of the scale, e.g., 3s, 4s, and 5s. Don’t be afraid to assign 1s/2s, or 6s/7s, if papers deserve them. If you are new to the KDD conference (or have not attended for a number of years) you may find it useful to take a look at online proceedings from recent KDD conferences to help calibrate your scores. The scoring system is as follows: 7: An excellent paper, a very strong accept. I will fight for acceptance, this is potentially best-paper material. 6: A very good paper, should be accepted. I vote and argue for acceptance, clearly belongs in the conference. 5: A good paper overall, accept if possible. I vote for acceptance, although would not be upset if it were rejected because of the low acceptance rate. 4: Decent paper, but may be below KDD threshold I tend to vote for rejecting it, but could be persuaded otherwise. 3: An OK paper, but not good enough. A rejection. I vote for rejecting it, although would not be upset if it were accepted. 2: A clear rejection. I vote and argue for rejection. Clearly below the standards for the conference. 1: A strong rejection. I'm surprised it was submitted to this conference. I will actively fight for rejection. 9